Premium Zippered Mattress Encasement From Utopia Bedding (Fits 12 Inches FITS PERFECTLY 12 INCHES OF HEIGHT : Premium quality Six ? Sided Mattress Protector designed to fit Twin XL size mattress having dimensions of 39 inches by 80 inches; 12 inches deep pocket. EFFECTIVE WATERPROOF : Mattress encasement protects your mattress from all kinds of liquids, bed wetting and stains. High quality TPU backing on all sides resist any leakage into the mattress. HIGH QUALITY FABRIC: The high- end smooth knitted fabric ensures comfortable feel along with breathability as it doesn?t trap heat. The soft and quiet encasement becomes your ultimate choice. ZIPPER GUARD: Our mattress protector comes with a well-designed zipper which keeps your mattress clean and fresh. It provides 360 degree protection to your mattress. MACHINE WASHABLE: Machine washable with waterproof lining facing in, Tumble dry on low heat for a worry-free clean; Note: Packaging might slightly vary BED BUG AND DUST MITE PROOF- Protects your mattress from bed bug and dust mite; This Mattress Protector can be used for both Mattresses and Box Springs.